Abstract
The energy width of the states of slow ions interacting with an electron gas has been calculated using the density-functional formalism to calculate an effective one-electron potential. Our results show the same behavior as the stopping power and straggling parameter when comparisons with dielectric theory are made. The agreement between the dielectric and nonlinear density-functional results is improved when a local-field correction is taken into account in the dielectric formalism.
- Received 29 February 1988
DOI:https://doi.org/10.1103/PhysRevB.38.9191
©1988 American Physical Society
